Thanks girls - much appreciated.
@VL - Thanks for the support, and youre right, a lot of the time the "darkest before dawn" saying really applies! I'm not so bad as I have been right now, just tired all the time, not sleeping at night and then passing out on my bed during the day and I feel premental and irritable all the time. When I had PND it was hideous. I was just one great big bag of crazy. I was horrible to my husband but if he went out I would be convinced he'd die and I'd never see him again. I was obsessed with Harry and thought he'd die of SIDS or some other hideous childhood ailment and I used to lie awake every night imagining how I would tell my family or work that my son had died.
That's part of the reason that I am so desperate for another baby. I missed DS's birth as I had a c-sec under general and I feel like I missed his first year as I didn't get to enjoy having a baby, I wasn't well and I wasn't myself. Next time round DH and I have decided that the minute I am out of hospital I will go straight on to a low dose of anti d's to stop me from plummetting.
I also suffered from depression when I was young, from about 14. But my mum thought I was being a drama queen (she did when I had PND too - told me to pull myself together

) so nothing was ever done about it. But I don't see the point in being a hero and trying to deal with it with no help, you know?
Sorry, I'm rambling. Sometimes I think rambling about it helps. And it helps me to read that others have been just as fraught!